Document Detail

Removal of organophosphate pesticides from wastewater by supercritical carbon dioxide extraction.
MedLine Citation:
PMID:  11848348     Owner:  NLM     Status:  MEDLINE    
Organophosphate pesticides including fenitrothion chlorpyrifos, diazinon, methamidophos, edifenphos, mevinphos, fenthion, and acephate present in agro-wastewater can be effectively removed by supercritical carbon dioxide (SC-CO2) extraction. Near quantitative removal of the pesticides from the aqueous solution can be achieved by SC-CO2 at 90 degrees C and 325 atm for 20 min of static extraction followed by 40 min of dynamic extraction. The extracted pesticides were collected in a small amount of Fenton's solution. The pesticides in Fenton's solution were degraded completely within an hour after the collection. A combination of SC-CO2 extraction and subsequent degradation by Fenton's reagent may provide an alternative water purification strategy for treating organophosphate pesticides in agro-wastewater.
Jya-Jyun Yu
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Water research     Volume:  36     ISSN:  0043-1354     ISO Abbreviation:  Water Res.     Publication Date:  2002 Feb 
Date Detail:
Created Date:  2002-02-18     Completed Date:  2002-07-30     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0105072     Medline TA:  Water Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  1095-101     Citation Subset:  IM    
Department of Environmental Engineering and Science, Feng-Chia University, Taichung, Taiwan, ROC.
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MeSH Terms
Carbon Dioxide / chemistry*
Chromatography, Supercritical Fluid
Hydrogen Peroxide / chemistry
Insecticides / chemistry*
Iron / chemistry
Organophosphorus Compounds*
Water Purification / methods*
Reg. No./Substance:
0/Fenton's reagent; 0/Insecticides; 0/Organophosphorus Compounds; 124-38-9/Carbon Dioxide; 7439-89-6/Iron; 7722-84-1/Hydrogen Peroxide

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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